From Pathetic To Atrocious - Avoid!

It's been so long since I've used the SA Post Office that I've forgotten about their pathetically poor service history. On Wednesday morning I submitted a document for Overnight Counter-To-Counter delivery. When asking the clerk when delivery could realistically be expected, I was told the next day, latest in two days' time. When calling customer service to track & trace the item I was told there were severe backlogs in the system and that the item was only likely to arrive after the weekend - that is at least five days as opposed to next day, latest two days as promised! Surely staff at the accepting branch should be informed of possible delays and should inform customers accordingly? Too much to expect of course... Anyway, thank you for creating very efficient private courier networks!